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New variable-speed drives with improved-design synchronous reluctance machines may now be capable of reaching high efficiency, even up to the IE4 level [1]. These machines have been studied for many years and significant progress was made in the 1990s using axial laminations in the rotor [2]. At that time, the technology was reviewed and identified, in principle, as a viable alternative [3]. However,...
This paper studies different rotor topologies for the design of a 2 MW doubly-fed reluctance generator for a wind turbine application. There have been several papers that put forward different options for this type of machine and the control has been extensively studied. This paper uses the same stator size and application to enable comparative operation. This machine has two 3-phase winding sets...
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